83 lines
3.0 KiB
Plaintext
83 lines
3.0 KiB
Plaintext
# -*- coding: utf-8 -*-
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#
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# Copyright 2019-2020 Fabien Bourgeois <fabien@yaltik.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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""" XML helpers and macros """
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from os import path
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import xml.etree.ElementTree as ET
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from xml.dom import minidom
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from typing import Dict, List, Union, Any
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# TODO: fix MyPy / typing
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# REF and test xml_write
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data XMLDictElement(tag: XMLText, attrs: XMLAttrs, children: List[Any])
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XMLText = Union[str, unicode]
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XMLAttrs = Dict[str, str]
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XMLChild = Union[XMLDictElement, XMLText, List]
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def xmlroot(tree: Dict[str, Any]) -> ET.Element:
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""" Special process for root XML Node """
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rootel = (tree['tag'], tree['attrs']) |*> ET.Element
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if 'children' in tree:
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(rootel, tree['children']) |*> xmlchild
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return rootel
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# TODO: addpattern here
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def xmlchild(parent: ET.Element, children: XMLDictElement) -> None:
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""" Handling of children (ie non root) XML Nodes with/o text and
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subchildren (recursive) """
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case children:
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match _ is XMLText:
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parent.text = children
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match _ is XMLDictElement:
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attrs = {unicode(k): unicode(v) for [k, v] in children.attrs.items()}
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new_parent = (parent, children.tag, attrs) |*> ET.SubElement
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subchildren = children.children
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if subchildren:
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(new_parent, subchildren) |*> xmlchild
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match _ is list:
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((xmlchild$ <| parent), children) |*> map |> consume
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else:
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raise TypeError('Invalid arguments for xmlchild')
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def xmln(tag: XMLText = '',
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attrs: XMLAttrs = {},
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children: Union[str, List] = []) -> XMLDictElement:
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""" XMLNode with default children, not attributes """
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xmldictel = XMLDictElement$ <*| (tag, attrs)
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case children:
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match c is str:
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return [c] |> xmldictel
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match c is list:
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return c |> xmldictel
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else:
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raise TypeError('Invalid arguments for xmln')
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def xml_write(filepath, tree):
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""" Write XML file according to filename and given tree """
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if filepath.endswith('.py'): # if .pyc, no need to generate XML
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output_xml = minidom.parseString(ET.tostring(tree)).toprettyxml(indent=' ')
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output_path = path.dirname(path.abspath(filepath))
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fpath = '%s/%s' % (output_path, path.basename(filepath).replace('.py', '_views.xml'))
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with open(fpath, 'w') as output_file:
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output_file.write(output_xml)
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